Motor vehicle



may 15-, 1923.

MOORHOUSE MOTOR VEHICLE.

1920 3 Sheets-Sheet 2 Filed Feb. '7,

mam?

ma w; m3; 1,455,169

A. MOORHOUSE MOTOR VEHICLE Filed Feb. '7, 1920 3 SheetsSheet 3 ALFRED IMOOR'HOUSE, OF DETROIT, MICHIGAN. ASSIGHOR TO PACKARD B18203 GAE CUMPANY, G DETROIT, MICHIGAN, A CORPORATION 01 MIC GAE.

MOTOR VEHICLE.

Application filed.

To of! whom it may concern:

Be it known that I, Amman MoosHoUsn, a. citizen oi? the United States, and resident of Detroit, Wayne County, State of Michigen, have invented certain new'and useful Improvements in Motor Vehicles, of which the following is a specification.

This invention relates to motor vehicles and more particularly to change speed mechanisms ti'ierefor.

The present object of the invention is to provide a mechanism of this kind particularly-adapted for use with heavy trucks and capable of at icsst tire changes of speed in. one direction and adapted for obtaining; th se E'C-Sflii's by 2: construction which will prevent eflection of dhe gear carryingshafts and undue Wear of the hearings and enable more compactarrangement of the gear caseto be provided.

Another object of the inventiom is to enable the operation of the gears to eiiect these various adjustments for the different speeds to he obtained by the same number of shifter rails formerly employed in conncction with four speed transmissions.

With these objects and others in View. the invention is embodied in preferable form in the construction and arrangement hereinai'tcr described and illustrated in the acciinnpanying drawings, in which:

Figure 1. is a horizontal section through the i-XlTlSl'illSSiOHl case showing the gears andshai'ts in full, hues; and

Figure 2 is an end View partly in vertical section; t

Figure 3 is a vertical section partly in elevation shOWing the shifter rails or bars and the gcar shiitlever;

Figure i is a vertical section at right angles to Figure. 3 showing the gear shift lever and liars;

gurc 5 is a diagram of the gears and the itcr hars which adapted cooperate no. showin the same in full lines in neutral position corresponding to the position occupied. by the gears in Figure 1 and showing in dotted lines the position the gears shifted from. neutral position will occupy in first position and showing in dot and dash lines the position the shifted gears will occup in reverse position;

re 8 is a similar diagram showing in shi February 7, 1920. Serial No. 356,823.

full lines the positions the gears and the bars will occupy when shifted to second epeed'adjustment and in dotted lines the positions the shifted gears will occupy in. third speed adjustment, and

Figure 7 is a diagran'i indicating in foil lines the positions the gears Wiii occupy in four speed position and in dotted lines the positions occupied when in fifth speed position.

In these (i.l1Z'1'l ."-T-"} in Figures 5. the bars or r: iis connected to and adapted to actuate said gears are marl fl ivitlrthe numbers of such gears.

Referring to the drawings .1 iniiiicates one section of the drive shaft of inc mission on which is mounted one member of the clutch it through 'whici power is transmitted from 'ti'lG crank si The other section 12 oi the drive chart is providcd with a spider 1.3 at the end thereof. adapted to he connected to the univesal joint. hiounted on the shaft section of the drive shaft is a gear ls having constant mesh with a gear 15 carried a counter shaft 16. This shaft provided with a gear 17 which is adapted to he engaged by a shift-able larger gear 18 i'i' ountet'i on the section 12 the drive shaft.

Fixed on the vtion 10 of the drive shaft is a gear 19 hating constant mesh with larger gear 20 of a counter shaft 21. A slidabie gear 22 is mounted on the shaft 21 and; is adapted to be shifted into and out of engagement with the ear 18 carried h the section 152 of the dr Si'ltlii'ii. .ii. slidahlc gear 23 on the ounter shaft 16 is adapted to he moved into and out of engagement with a smaller gear 2i fixed on the driven section 12 of the drive shaft. On the other counter shaft 21 is a iarge gear 25 With which the 2% is adapted to be engaged. A reversinggearQt) is mounted on the counter shaft 16 and is in constant mesh with a.

opernte the gear. :24: to effect fourth and fifth speed adjustments. The rcil 32 is connected to and adapted to operate the gear 23, while i'l'lF !21il 3:5 is connected to the gear :22 and rail :54 is connected to gear 18.

These rails are adapted to be shifted by the movement of a lug 35 on the lower end of the shift lever 36, shown in Figures 3 and 4:. A laterally swinging locking member 37 is mounted in the lever casing 88 and is provided with two wings 38 and 39 adapted to loclc those rails which are not to be moved by the lever. This lock is provided with a central slot 39' through which the lower end of the lever is free to more longitudinally with respect to the ruiis so as to permit the free actuation otthc two adjacent rails by the lug. The lug is adapted to extend into slots 40 formed in the'rails and these slots. are in slinement when the rails and the gears occupy neutral positions as shown in Figure 5, in full lines. Stops 41 and 42 are fixed in the lever casing on opposite sides-of the lever and are so disposed asto limit the lateral movement of the shift lever to two extreme positions of a .ljustment. In these positions of adjust ment the lug at the lower end of the lever will overlap parts of two adjacent shifter v rails as shown in the oiugg rzims in in ures 5, 5 and 7 and also in l igure 3.

The lever is proi'nled with a .atcli or abutment 43 adapted tobeur a ifiiilfii. the stop 4:52

and which may be raised by means of u handie so usto carry the latch aborctbc stop and thus permit the lug to be swi'ingz post the same. It will be noted from the dotted line indication in Figure 5 that the line of en- ,g:igcnient of the latch and stop is such that when the latch has bcei'i raised so that the lug may be swung past the stop, said lug will then be alincd withrails 34-. and 33. v

The rail 34 effects the reverse adjustment and thefirst or low-low forward adjustment, this latter adjustment being the additi'onal speed adjustment "proi'idcd by this iniciition. This additional speed adjustment and the reverse ernngement being those which are most seldom used, the rails, therefore, are those which are arranged outside of the latch line.-

In the operation of the device in order to obtain first or low -low speed forward, the lug 35 of the shift lever is moved past the stop 42 by lifting the latch. and into alinement with the rails 33 and 34 and is then moved in the direction of the arrow on the rail 34, thus moving the said rail and the rail section 10 of the drive through gear 15 on the counter shaft 16 and through the small monies ricd back by the rail 33.. In this adjustment I the shifted gears 18 and 22 and the two shifted rails will occupy the positions indicated in dot and dash lines in Figure 5.

To obtain second speed forward the lug is moved into engagement with the rails 3:2 and 33 jointly and then moved to the left in the direction or" the arrow marked Second whereupon, assuming that the lever is being moved from neutral position, the gear 2Q will be carried into engagement Withthe gear 18 and the gear 23 will be carried into free or neutral position as indicated in full lines in Figure 6.

For third speed forward the rails 3:2 and 33 are moved in the opposite direction to that last described thereby carrying the gear 523 into engagement with the gear 24 and carrying the gear 32-2. into free or neutral position as shown in dotted lines in Figure 6,

To obtain fourth speed forward the lever lug is shifted through the slots to engage rails 3i. and ,.,nd then moved so as to carry the rails in the direction of the arrow marked fl ourth, whereupon the geanzit will he carried into engagement with the gear 25 and the gear 23 will be carried into free or neutral position as indicated in full lines in Figure 4.

For fifth speed the. rails 31 and 32 are shifted in the opposite direction to that last described thus carrying the internal teeth otqthe gear 9 1 into engagement with the extm'nai teeth on the gear 19, whereupon the drive will be direct from the sluift section 12'; to the section 12. The position the parts will then occupy is indicatedin dotted lines in Figure 7.

The arrangement thus described distributes the shifting gears upon three shafts and provides 21 compact construction of gear box and one in which theshafts are rigidly sup-,

ported and deflection thereof avoided. It will be seen that it is also possible to ellect the shifting operation of the gears to obtain the five forward speeds by the usual four rail construction employed in four speed transmissions.

Having thus described my invention, what i claim and desire to secure by Letters Petent is: I

1. In a motor yehicle. va change? speed "mechanism having a drive shaft in two secmemes tions, gears on said sections a pair of counter shafts having gears thereon adapted for engagement with the corresponding gears on the drive shaft and including shiftahle gears, one of said drive shaft shiftahle gears-being movable with. a gear on the other counter shaft, and shifting means operable to effect said joint operations.

2. In a motor vehicle, a change speed mechanism having adrive shaft in two sections, a pair of counter shafts each having a fixed gear in engagement. with a corresponding fixed gear on one section of said. drive shaft, two additional fixed gears on one of said counter shafts, a reversing idler gear in constant engagement- With one of said additional fixed gears, a shiftahle gear on the other section of said drive shaft, means for moving said shiftable gear into engagement with either the other additional fixed gear or said idler gear, a shift able gear on the other countershaft and means for moving it into operative engage ment with section.

In a motor vehicle a change speed mechanism having adrive shaft in two t-ions, a pair of counter shafts each having a tixed gear in engagement with :1 corresponding fixed gear'on one section of said drive shaft. two additional fixed gears on one of said counter shafts, a reversing idler gear in constant engagement with one of said additional fixed gears, shiftablc gear on the other section of said drive shaft normally in neutral position, a shiftahle gear on the other counter shaft normally in the transverse line of the other one of said additional fixed gears and adapted to engage said shift ahle gear on said drive shaft, operating means for simultaneously moving said shifta'ole gear on the drive shaft into eugagement with said other additional fixed gear and the shiftuble gear on the other counter shaft out of the transverse line of said additional fixed gear and for simul taneously moving said shiftahle gears on the drive shaft and counter shaft in the rcverse direction until said shiftahle gear on the drive shaft engages said reversing idler gear.

4. In a motor vehicle,"a change speed mechanism having a drive shaft in two sections, a pair of counter shafts each having a fixed gear in engagement with a correspond ing fixed gear on one section of said drive shaft, additional fixed gears on said counter shafts a reversing idler gear in permanent engagement with a fixed gear on a counter shaft, shiftable gears on the other section of the drive shaft and on both counter shafts. means for simultaneously moving a shit'tahle gear on the drive shaft and a shiftahlv gear on a counter shaft from neutral position in one direction until saidshiftahle gear on 'shiftable gear on the said said shiftahle gear on the shaft ,of said the drive shaft engages a fixed gear on the other counter shaft for low speed and 1'01 then moving said shlltuble gears shaft engages the reversing idler gear and for then moving them haclr to neutral position, means for simultaneously moving said counter shaft into engagement with said shiftahle gear on said drive shaft and a shiftahle gear on the other counter haft to a. neutral position and then both to neutral, means for siu'niltaneously moving said shiftahle gear on the first mentioned counter shaft to a neutral pimition and said last'mcntioncd shiftuhle gear on said last mentioned counter shaft into engagement with. a second shiftahle gear on said drive shaft for third speed and then back to neutral, means for simultaneously moving said lastn'icntioncd shiftahle gear on the drive shaft and said last nurntioned shifialile gear on said last mentioned counter shaft until said shiftahle gear on the drive shaft engages a lixcd or on the other counter shaft. and means 101' moving said last two nicnt' med shiftahle gears in the reverse direction until the shiftablc gear on the drive she ft makes engagement with a fixed gear on the other section of the drive shaft from that on which it mounted.

5. In motor vehicle. a change speed mechanism having a drive shaft in two sections, a pair of counter shafts each having a fixed gear in engagement with a corresponding fixed gear on one section of said drive soaft, other gears on said counter shafts and on the other section of said, drive shaft including shiftahlc gears on each. the said gears iacing so constructed and related as to produce lx v (liflcrent adjustn'zcuts five changes of speed. andadjustuhle in ails ha v ing a single movable ope at ng member for s1u'ccssivcl shifting the gears into successive cugagcuicnts for the dilicrent speeds.

6, in a motor vehicle, a change speed mcchaz'iism having a drive shaft in two sections. :1 pair of countershafts each having a iixcd gear in engagement with a corresponding; fixed gear on'one section of said drive shaft, ollu'r gears on said counter shafts and on the other section of said drive shaft including shiftahlc gears on caciuthc said gears liciug so constructed and related as to produce by different adjustments live changes of speed. four shifter rails forsucccssively moving SillfttllllQ gears to form the gear con uections for the different speeds and means for moving said rails.

'7. In a motor vehicle, a change speed mechanism having a drive shaft in two sections, av pair of counter-shafts each having a fixed gear in engagement.with cor responding lixcd gear on one section drive shaft, other gears on counter shaits and on the other section haul-z through neutral until the gear on the drive including shiftnbie gears cvssive pairs in both directions longim iinai- (if said (12% (mam-i1. iii gears being so consh'nkriml iy from neutral pUFliilfin thereby snccessweiy 3 and i'oiuimi a. m produce by different :id-v bringing flu? gnaw,- into driving connections jnstme-ni five (1141115105 of speed, a ikvt'lsing fur imv speed forward. reverse. second, idier' mm! in wiisbzmt mg'ugwnvntwith 3, third. fourth and fifth s im-i1 fm'ward. fimd glimon the (iIiVP shaft fnun shifter In testimony whereof I affix my signature. mils upmnlively'r'mmiflmi in said shiftabiu gun's, means. fur ia'iuving said rails in Suc- ALFRED 15.100 51110175515. 

